A conducting sphere A of radius a, with charge Q is placed concentrically inside a conducting shell B of radius b.B is earthed, C is the common centre of A and B. If P is the point between shells A and B at distance r from center C then Match the proper entries from column- 2 to column- 1 using the codes given below the columns, (use a=1 m,b=3 m,r=2 m and K=14πε0)
Column-I | Column-II |
(p) Electric field at point P is | (1) 2KQ3 |
(q) Electric potential at point P is | (2) zero |
(r) Electric potential difference between A and B is | (3) KQ4 |
(s) Electric field outside the shell B at distance 5 m from centre C is | (4) KQ6 |